Landgraaf, Parkstad Limburg, Schaesberg, Alkali–silica reaction
Alkali–silica reaction (ASR) has been identified in concrete structures in Landgraaf, Parkstad Limburg, and Schaesberg, Netherlands.
ASR is a chemical reaction between reactive silica in the aggregate and alkali hydroxides in the concrete pore solution.
The reaction produces a gel that expands, causing the concrete to crack and deteriorate.
ASR can occur in concrete structures that are exposed to moisture and high temperatures.
The symptoms of ASR include:
- Cracking
- Expansion
- Deterioration
ASR can be prevented by using non-reactive aggregates or by adding supplementary cementitious materials to the concrete mix.
ASR is a serious problem that can cause significant damage to concrete structures.
If you suspect that ASR is present in your concrete structure, it is important to consult with a qualified professional.
ASR can be a very expensive problem to fix, so it is important to take steps to prevent it from occurring in the first place.
Here are some tips for preventing ASR:
- Use non-reactive aggregates
- Add supplementary cementitious materials to the concrete mix
- Keep the concrete dry
- Avoid exposing the concrete to high temperatures
By following these tips, you can help to prevent ASR from occurring in your concrete structure.
Conclusion
ASR is a serious problem that can cause significant damage to concrete structures.
It is important to be aware of the symptoms of ASR and to take steps to prevent it from occurring.
If you suspect that ASR is present in your concrete structure, it is important to consult with a qualified professional.
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